Date: Fri, 29 Apr 2005 18:32:48 +1000 (EST) From: Neo-Vortex <root@Neo-Vortex.net> To: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?= <jinmei@wide.ad.jp> Cc: freebsd-net@freebsd.org Subject: Re: ipv6 host part Message-ID: <20050429183116.S68101@Neo-Vortex.net> In-Reply-To: <y7vd5seqbuu.wl@ocean.jinmei.org> References: <4270C6E7.4010701@he.iki.fi> <y7v7jimqmyk.wl@ocean.jinmei.org> <4271AC95.3080309@he.iki.fi> <y7v3btaql0l.wl@ocean.jinmei.org> <20050429170308.Y54816@Neo-Vortex.net> <y7vd5seqbuu.wl@ocean.jinmei.org>
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On Fri, 29 Apr 2005, JINMEI Tatuya / [ISO-2022-JP] ¿ÀÌÀãºÈ wrote:
> >>>>> On Fri, 29 Apr 2005 17:04:22 +1000 (EST),
> >>>>> Neo-Vortex <root@Neo-Vortex.net> said:
>
> >> - assuming the prefix is "P/64", do the followings:
> >> # ifconfig IFNAME inet6 P::1 prefixlen 64 alias autoconf
> >> # ifconfig IFNAME inet6 P::2 prefixlen 64 alias autoconf
> >> # ifconfig IFNAME inet6 P::3 prefixlen 64 alias autoconf
>
> > IIRC, the first address within the prefix should have a prefixlen of 64,
> > (providing the prefixlen is actually 64) but others on the same prefix
> > should have 128.
>
> I don't remember any such restriction. What is your source (e.g.,
> RFC) of this information?
alias Establish an additional network address for this interface. This
is sometimes useful when changing network numbers, and one wishes
to accept packets addressed to the old interface. If the address
is on the same subnet as the first network address for this
interface, a non-conflicting netmask must be given. Usually
0xffffffff is most appropriate.
That is for IPv4 taken from ifconfig(8), one would assume for IPv6 it is
the same and i use it like that without issues (although i have not tried
it the other way)
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